Telescopes & Astronomy

The Orion Spacer for Monster Parallelogram and 25x100 Binoculars ensures a perfect, secure fit when mounting your large 25x100 binoculars to the Orion Monster Parallelogram mount. This simple yet essential adapter fills the gap for a stable connection, minimizing vibrations and allowing you to enjoy steady, shake-free views of the night sky. It's a must-have accessory for getting the most out of your big binocular stargazing sessions.

• This 4mm focal length, 8-element telescope eyepiece will amaze you with vivid, panoramic views of the night sky
• Orion LHD eyepieces feature high-index, low-dispersion lanthanum glass for exceptional control of chromatic aberrations to provide true-color views with outstanding clarity
• All Orion LHD telescope eyepieces boast an ultra-wide 80-degree apparent field of view for an immersive viewing experience
• Long 20mm eye relief lets eyeglass wearers enjoy the view comfortably without removing glasses
• The fully multi-coated 4mm LHD eyepiece features a tapered 1.25" barrel which is threaded for use with 1.25" eyepiece filters

• With fully multi-coated 8-element optics, the 20mm focal length telescope eyepiece will amaze you with true-color views of the night sky
• Orion LHD eyepieces feature high-index, low-dispersion lanthanum glass to eliminate chromatic aberrations for exceptionally clear views
• All Orion LHD telescope eyepieces boast an ultra-wide 80-degree apparent field of view for an immersive viewing experience
• Long 20mm eye relief and large 30mm-diameter eye lens lets eyeglass wearers enjoy the view comfortably without removing glasses
• The 20mm LHD eyepiece features a tapered 2" barrel which is threaded for use with 2" eyepiece filters

• An ideal reference for observing ringed Saturn and its brightest moons
• Identifies atmospheric features of Saturn using standard nomenclature
• Includes lists of all Saturn oppositions, observable conjunctions from 2014 to 2020
• Lists best filters for visual observation and astrophotography of Saturn
• Plastic-laminated for durability, the Saturn Map measures 25.25" x 11" when fully unfolded, and folds up to 8.5" x 11" for easy portability

• An indispensable reference guide for observing the "Red Planet"
• Identifies Martian features using classical albedo and modern nomenclature
• Lists all opposition and conjunction events from 2014 to 2020
• Recommends best filters for visual observation and astrophotography of Mars
• Plastic-laminated for durability, the Mars Map measures 25.25" x 11" when fully unfolded, and folds up to 8.5" x 11" for easy portability